Best intake gasket I ever used
The newsouth explanation of how power gaskets work.
PowerGasket Plus™ gives you up to 5% more power from your engine by reducing the temperature of the incoming air to your engine. This gives you cooler, denser air for more horsepower and performance from your engine.
The PowerGasket Plus™ is made from a purpose-built high performance composite material. It conducts on average less than 1/500th of the heat of the steel gasket that it replaces. Your intake manifold will stay 30-50° F cooler and your incoming air will stay 20-30° F cooler.
Cooler air, denser air, means more oxygen. Your engine sensors register these changes and will inject more fuel to give you more power. Cooler air also reduces detonation, so you can turn up the boost or advance your engine timing for even more performance gains.